2131330194 has 24 divisors (see below), whose sum is σ = 5277579840. Its totient is φ = 608951448.

The previous prime is 2131330169. The next prime is 2131330199. The reversal of 2131330194 is 4910331312.

It is not an unprimeable number, because it can be changed into a prime (2131330199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8457534 + ... + 8457785.

It is an arithmetic number, because the mean of its divisors is an integer number (219899160).

Almost surely, 2^2131330194 is an apocalyptic number.

2131330194 is an abundant number, since it is smaller than the sum of its proper divisors (3146249646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131330194 is a wasteful number, since it uses less digits than its factorization.

2131330194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16915334 (or 16915331 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2131330194 is about 46166.3318230938. The cubic root of 2131330194 is about 1286.9161345982.

The spelling of 2131330194 in words is "two billion, one hundred thirty-one million, three hundred thirty thousand, one hundred ninety-four".